Package io.prestosql.sql.planner.iterative.rule

Class PushPredicateIntoTableScan

java.lang.Object

io.prestosql.sql.planner.iterative.rule.PushPredicateIntoTableScan

All Implemented Interfaces:

Rule<FilterNode>

public class PushPredicateIntoTableScan
extends Object
implements Rule<FilterNode>

These rules should not be run after AddExchanges so as not to overwrite the TableLayout chosen by AddExchanges

Nested Class Summary

Nested classes/interfaces inherited from interface io.prestosql.sql.planner.iterative.Rule

Rule.Context, Rule.Result

Constructor Summary

Constructors

Constructor	Description
PushPredicateIntoTableScan(Metadata metadata, TypeOperators typeOperators, TypeAnalyzer typeAnalyzer)

Method Summary

Modifier and Type	Method	Description
Rule.Result	apply(FilterNode filterNode, Captures captures, Rule.Context context)
Pattern<FilterNode>	getPattern()	Returns a pattern to which plan nodes this rule applies.
boolean	isEnabled(Session session)
static Optional<PlanNode>	pushFilterIntoTableScan(TableScanNode node, Expression predicate, boolean pruneWithPredicateExpression, Session session, TypeProvider types, PlanNodeIdAllocator idAllocator, Metadata metadata, TypeOperators typeOperators, TypeAnalyzer typeAnalyzer, DomainTranslator domainTranslator)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PushPredicateIntoTableScan

public PushPredicateIntoTableScan(Metadata metadata,
                                  TypeOperators typeOperators,
                                  TypeAnalyzer typeAnalyzer)

Method Detail

getPattern

public Pattern<FilterNode> getPattern()

Description copied from interface: Rule

Returns a pattern to which plan nodes this rule applies.

Specified by:

getPattern in interface Rule<FilterNode>

isEnabled

public boolean isEnabled(Session session)

Specified by:

isEnabled in interface Rule<FilterNode>

apply

public Rule.Result apply(FilterNode filterNode,
                         Captures captures,
                         Rule.Context context)

Specified by:

apply in interface Rule<FilterNode>

pushFilterIntoTableScan

public static Optional<PlanNode> pushFilterIntoTableScan(TableScanNode node,
                                                         Expression predicate,
                                                         boolean pruneWithPredicateExpression,
                                                         Session session,
                                                         TypeProvider types,
                                                         PlanNodeIdAllocator idAllocator,
                                                         Metadata metadata,
                                                         TypeOperators typeOperators,
                                                         TypeAnalyzer typeAnalyzer,
                                                         DomainTranslator domainTranslator)